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Optus has completed its acquisition of WiMax network operator, Vividwireless from Seven Group, announced in February and announced plans to build LTE-TDD test facilities in preparation for a major LTE-TDD network rollout in 2013.

For years cellular mobile and WiMAX network operators along with their network and device suppliers have been touting their wireless broadband offerings as 4G, but the International Telecommunication Union has only just finalised the 4G standards.